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412
413 <li>Typography Class</li>
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424
425 <div class="section" id="typography-class">
426<h1>Typography Class<a class="headerlink" href="#typography-class" title="Permalink to this headline"></a></h1>
427<p>The Typography Class provides methods that help you format text.</p>
428<div class="contents local topic" id="contents">
429<ul class="simple">
430<li><a class="reference internal" href="#using-the-typography-class" id="id1">Using the Typography Class</a><ul>
431<li><a class="reference internal" href="#initializing-the-class" id="id2">Initializing the Class</a></li>
432</ul>
433</li>
434<li><a class="reference internal" href="#class-reference" id="id3">Class Reference</a></li>
435</ul>
436</div>
437<div class="custom-index container"></div><div class="section" id="using-the-typography-class">
438<h2><a class="toc-backref" href="#id1">Using the Typography Class</a><a class="headerlink" href="#using-the-typography-class" title="Permalink to this headline"></a></h2>
439<div class="section" id="initializing-the-class">
440<h3><a class="toc-backref" href="#id2">Initializing the Class</a><a class="headerlink" href="#initializing-the-class" title="Permalink to this headline"></a></h3>
441<p>Like most other classes in CodeIgniter, the Typography class is
442initialized in your controller using the <code class="docutils literal"><span class="pre">$this-&gt;load-&gt;library()</span></code> method:</p>
443<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;typography&#39;</span><span class="p">);</span>
444</pre></div>
445</div>
446<p>Once loaded, the Typography library object will be available using:</p>
447<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span>
448</pre></div>
449</div>
450</div>
451</div>
452<div class="section" id="class-reference">
453<h2><a class="toc-backref" href="#id3">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline"></a></h2>
454<dl class="class">
455<dt id="CI_Typography">
456<em class="property">class </em><code class="descname">CI_Typography</code><a class="headerlink" href="#CI_Typography" title="Permalink to this definition"></a></dt>
457<dd><dl class="attribute">
458<dt>
459<code class="descname">$protect_braced_quotes = FALSE</code></dt>
460<dd><p>When using the Typography library in conjunction with the <a class="reference internal" href="parser.html"><span class="doc">Template Parser library</span></a>
461it can often be desirable to protect single and double quotes within curly braces.
462To enable this, set the <code class="docutils literal"><span class="pre">protect_braced_quotes</span></code> class property to TRUE.</p>
463<p>Usage example:</p>
464<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-&gt;</span><span class="na">load</span><span class="o">-&gt;</span><span class="na">library</span><span class="p">(</span><span class="s1">&#39;typography&#39;</span><span class="p">);</span>
465<span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">protect_braced_quotes</span> <span class="o">=</span> <span class="k">TRUE</span><span class="p">;</span>
466</pre></div>
467</div>
468</dd></dl>
469
470<dl class="method">
471<dt id="CI_Typography::auto_typography">
472<code class="descname">auto_typography</code><span class="sig-paren">(</span><em>$str</em><span class="optional">[</span>, <em>$reduce_linebreaks = FALSE</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_Typography::auto_typography" title="Permalink to this definition"></a></dt>
473<dd><table class="docutils field-list" frame="void" rules="none">
474<col class="field-name" />
475<col class="field-body" />
476<tbody valign="top">
477<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
478<li><strong>$str</strong> (<em>string</em>) – Input string</li>
479<li><strong>$reduce_linebreaks</strong> (<em>bool</em>) – Whether to reduce consequitive linebreaks</li>
480</ul>
481</td>
482</tr>
483<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">HTML typography-safe string</p>
484</td>
485</tr>
486<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
487</td>
488</tr>
489</tbody>
490</table>
491<p>Formats text so that it is semantically and typographically correct HTML.
492Takes a string as input and returns it with the following formatting:</p>
493<blockquote>
494<div><ul class="simple">
495<li>Surrounds paragraphs within &lt;p&gt;&lt;/p&gt; (looks for double line breaks to identify paragraphs).</li>
496<li>Single line breaks are converted to &lt;br /&gt;, except those that appear within &lt;pre&gt; tags.</li>
497<li>Block level elements, like &lt;div&gt; tags, are not wrapped within paragraphs, but their contained text is if it contains paragraphs.</li>
498<li>Quotes are converted to correctly facing curly quote entities, except those that appear within tags.</li>
499<li>Apostrophes are converted to curly apostrophe entities.</li>
500<li>Double dashes (either like – this or like–this) are converted to em—dashes.</li>
501<li>Three consecutive periods either preceding or following a word are converted to ellipsis (…).</li>
502<li>Double spaces following sentences are converted to non-breaking spaces to mimic double spacing.</li>
503</ul>
504</div></blockquote>
505<p>Usage example:</p>
506<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">auto_typography</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span>
507</pre></div>
508</div>
509<p>There is one optional parameter that determines whether the parser should reduce more than two consecutive line breaks down to two.
510Pass boolean TRUE to enable reducing line breaks:</p>
511<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">auto_typography</span><span class="p">(</span><span class="nv">$string</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
512</pre></div>
513</div>
514<div class="admonition note">
515<p class="first admonition-title">Note</p>
516<p class="last">Typographic formatting can be processor intensive, particularly if you have a lot of content being formatted.
517If you choose to use this method you may want to consider <a class="reference internal" href="../general/caching.html"><span class="doc">caching</span></a> your pages.</p>
518</div>
519</dd></dl>
520
521<dl class="method">
522<dt id="CI_Typography::format_characters">
523<code class="descname">format_characters</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Typography::format_characters" title="Permalink to this definition"></a></dt>
524<dd><table class="docutils field-list" frame="void" rules="none">
525<col class="field-name" />
526<col class="field-body" />
527<tbody valign="top">
528<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
529<li><strong>$str</strong> (<em>string</em>) – Input string</li>
530</ul>
531</td>
532</tr>
533<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Formatted string</p>
534</td>
535</tr>
536<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
537</td>
538</tr>
539</tbody>
540</table>
541<p>This method is similar to <code class="docutils literal"><span class="pre">auto_typography()</span></code> above, except that it only does character conversion:</p>
542<blockquote>
543<div><ul class="simple">
544<li>Quotes are converted to correctly facing curly quote entities, except those that appear within tags.</li>
545<li>Apostrophes are converted to curly apostrophe entities.</li>
546<li>Double dashes (either like – this or like–this) are converted to em—dashes.</li>
547<li>Three consecutive periods either preceding or following a word are converted to ellipsis (…).</li>
548<li>Double spaces following sentences are converted to non-breaking spaces to mimic double spacing.</li>
549</ul>
550</div></blockquote>
551<p>Usage example:</p>
552<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">format_characters</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span>
553</pre></div>
554</div>
555</dd></dl>
556
557<dl class="method">
558<dt id="CI_Typography::nl2br_except_pre">
559<code class="descname">nl2br_except_pre</code><span class="sig-paren">(</span><em>$str</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_Typography::nl2br_except_pre" title="Permalink to this definition"></a></dt>
560<dd><table class="docutils field-list" frame="void" rules="none">
561<col class="field-name" />
562<col class="field-body" />
563<tbody valign="top">
564<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
565<li><strong>$str</strong> (<em>string</em>) – Input string</li>
566</ul>
567</td>
568</tr>
569<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Formatted string</p>
570</td>
571</tr>
572<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
573</td>
574</tr>
575</tbody>
576</table>
577<p>Converts newlines to &lt;br /&gt; tags unless they appear within &lt;pre&gt; tags.
578This method is identical to the native PHP <code class="xref php php-func docutils literal"><span class="pre">nl2br()</span></code> function, except that it ignores &lt;pre&gt; tags.</p>
579<p>Usage example:</p>
580<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$string</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-&gt;</span><span class="na">typography</span><span class="o">-&gt;</span><span class="na">nl2br_except_pre</span><span class="p">(</span><span class="nv">$string</span><span class="p">);</span>
581</pre></div>
582</div>
583</dd></dl>
584
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